1. Basic Climate Change Science, Human Response and the United Nations Framework Convention on Climate Change (UNFCCC)
Prepared for the National Workshop on Capacity Development for the Clean Development Mechanism (CD4CDM)
26-27 March 2003, Sunway Hotel, Phnom Penh
by Mr. Chea Chan Thou,
Member of the National Technical Committee for Climate Change
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2. Content of the Presentation
I. Greenhouse Effect
II. Climate Change Impacts
III. Human Response and the United Nations Framework Convention on Climate Change (UNFCCC)
IV. Cambodia’s Activities Related to Climate Change
V. Summary
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3. I. Greenhouse Effect (1)
Greenhouse effect is a natural geophysical process, it allows us to exist on earth
The gases known as greenhouse gases are naturally found in the atmosphere are: water, carbon dioxide, methane, nitrogen oxide, ozone, and cloroflurocarbons
These gases trap heat close to the earth’s surface
Without the greenhouse effect, the earth’s surface temperature would be –180oC
The natural greenhouse effect warms the temperature of the atmosphere to 15 oC at the Earth’s surface
This natural warming allows water to exist on the Earth’s surface, the basis of life supports

4. I. Greenhouse Effect (2)

5. I. Greenhouse Effect (3)
Emissions from human activities are increasing the concentration of atmospheric GHGs
Enhanced greenhouse effect occurs due to atmospheric buildup of GHGs that are released by human activities
The main sources of GHG emissions are:
Burning of fossil fuels (coal, oil and natural gas)
Mining activities
Industrial activities
Food production activities
Burning and exploiting forests
Land use change
Waste management

6. I. Greenhouse Effect (4)

7. II. Climate Change Impacts (1)
Potential climate change impacts include:
Agriculture, forestry and fisheries,
Human and animal health
Water resources
Coastal areas
Species and natural areas.

8. II. Climate Change Impacts (2)

9. III. Human Response and the United Nations Framework Convention on Climate Change (UNFCCC) (1)
The First World Climate Conference recognized climate change as a serious problem in 1979
A number of intergovernmental conferences focusing on climate change were held in the late 1980s and early 1990s
In 1990 IPCC (Panel of 2,500 scientists) released its first assessment report concluding that
Climate change is real and human activities are contributing
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10. The Convention sets out some guiding principles:
III. Human Response and the United Nations Framework Convention on Climate Change (UNFCCC) (2)
The United Nations Framework Convention on Climate Change (UNFCCC) is a foundation of global efforts to combat global warming.
The UNFCCC Objective is “Stabilization of greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous antropogenic human-induced interference with climate system. Such a level should be achieved within a time-frame sufficient to allow ecosystems to adapt naturally to climate change, to ensure that food production is not threatened and to enable economic development proceed in a sustainable manner”.
The Convention sets out some guiding principles:
Precautionary principle;
Principle “Common but differentiated responsibilities”;
Needs of developing countries for sustainable development.
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11. III. Human Response and the United Nations Framework Convention on Climate Change (UNFCCC) (3)
The UN Framework Convention on Climate Change (UNFCCC) was signed by 154 countries (plus the EC) in 1992 at Rio de Janeiro. To date, 186 countries have ratified the Convention
The Convention entered into force on 21 March 1994
The Conference of the Parties (CoP) held its first session in Berlin ( Germany) in 1995
The Parties meet every year (CoP), this year will be in Italy
The CoP-3 in Kyoto (Japan) in 1997 established the Kyoto Protocol
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12. III. Human Response and the United Nations Framework Convention on Climate Change (UNFCCC) (4)
Both developed and developing countries accepted a number of general commitments:
National communications containing inventory of greenhouse gas emissions and sinks
Climate change mitigation national programs
Strategies for adapting to climate change
Promote technology transfer and the sustainable management, conservation, and enhancement of sinks
Take climate change into account in their relevant policies
Cooperate in scientific, technical and education matters
Promote education, public awareness, and exchange of information related to climate change.

13. III. Human Response and the United Nations Framework Convention on Climate Change (UNFCCC) (5)

14. Industrialized countries undertake several other specific commitments
III. Human Response and the United Nations Framework Convention on Climate Change (UNFCCC) (6)
Industrialized countries undertake several other specific commitments
The richest countries shall provide “new and additional resources” and facilitate technology transfer
A financial mechanism provides funds on a grant basis

15. IV. Cambodia’s Activities Related to Climate Change (1)
Cambodia ratified the UNFCCC on 18 December 1995, and the UNFCCC entered into force on 17 March 1996
In August 1998, Cambodia and UNDP/GEF signed the project document named “Enabling Cambodia to Prepare its First National Communication in response to the UNFCCC (Cambodia’s Climate Change Enabling Activity Project: CCEAP)
CCEAP is the first climate change-related project implemented in Cambodia with the aim of preparation of the first National Communication
The Ministry of Environment is the National Focal Point of the UNFCCC and the implementing agency of the CCEAP

16. IV. Cambodia’s Activities Related to Climate Change (2)
The project has produced a number of significant outputs:
National GHG inventory for 1994;
GHGs mitigation analysis in energy and transport, land use- land use change and forestry, and agriculture sector;
Vulnerability and adaptation assessment to climate change in Cambodia;
Cambodia’s Initial National Communication;
Improvement of activity data and emission factors for forestry sector in Cambodia;
Assessment of GHGs mitigation technologies in Cambodia; and
Establishment of the project website:

17. V. Summary
Human activities are increasing the concentration of GHGs in the atmosphere
The increase of GHG concentration will lead to unprecedented increase in average global temperature
Rising temperature are predicted to lead to disruptions in climate patterns, have adverse impacts on food supply, fresh water resources, human health, coastal areas, species and natural areas
The international community has worked together to create an agreement on how to address climate change known as the UNFCCC
The Convention is a United Nations agreement to stabilize greenhouse gases in the atmosphere, at a level that would prevent dangerous changes to the climate
To date, 186 countries have ratified the climate change convention, including Cambodia
The Kyoto Protocol is the first concrete step toward cutting GHG emissions

18. Thank you !